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Supply and testing of Dunlop and Avon tyres for various car models.


Identifier  ExFiles\Box 157\3\  scan0099
Date  25th July 1939
  
1332 + 666a + 400g

To Rm {William Robotham - Chief Engineer} /IMW. {Ivan M. Waller - Head of Chateauroux} from Rm {William Robotham - Chief Engineer} /Gry. {Shadwell Grylls}
Hotel de France,
ChateaurouxFrench test region,
Indre, France.

Rm {William Robotham - Chief Engineer} /Gry. {Shadwell Grylls} 2/MH. {M. Huckerby} 25.7.39.

Dunlops were here yesterday and they will send you a further supply of 7 1/2 x 16 4-ply tyres for 30.G.VII.

They are also sending four special 6.50 x 16 covers which you will be able to recognise by a red band painted on them. These are a tyre which they have just developed and which is reputed to have less weight, more cornering power and less power absorption. They should be indestructible on the Italian Autostrada at normal pressures. When they arrive please let us know your views on how 14.B. handles when they are fitted.

Our present decision for tyres for the CornicheBentley streamlineExperimental Streamline Bentley B.23.A.Ed precursor to R Type Continental, never produced for the Motor Show is to fit the thinnest tread five-stud Avons. We know that one of these failed after 30 miles all out on the autostrada, but what interests us more is whether they are satisfactory for the high speeds maintainable in France when inflated to the normal pressure.

Rm {William Robotham - Chief Engineer} /Gry. {Shadwell Grylls}
  
  
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).


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